activity
19982023
most citedNon-backtracking random walks mix faster

126 citations · 834 across the 125 of their papers we have counts for

collaborators

159 papers

math.CO2023

The power of many colours

Noga Alon, Matija Bucić, Micha Christoph +1

A classical problem, due to Gerencsér and Gyárfás from 1967, asks how large a monochromatic connected component can we guarantee in any -edge colouring of ? We consider how…

math.CO2023

On bipartite coverings of graphs and multigraphs

Noga Alon

A bipartite covering of a (multi)graph is a collection of bipartite graphs, so that each edge of belongs to at least one of them. The capacity of the covering is the sum of…

cs.DS2023

Sublinear Time Shortest Path in Expander Graphs

Noga Alon, Allan Grønlund, Søren Fuglede Jørgensen +1

Computing a shortest path between two nodes in an undirected unweighted graph is among the most basic algorithmic tasks. Breadth first search solves this problem in linear time, wh…

math.CO2023

Strong blocking sets and minimal codes from expander graphs

Noga Alon, Anurag Bishnoi, Shagnik Das +1

A strong blocking set in a finite projective space is a set of points that intersects each hyperplane in a spanning set. We provide a new graph theoretic construction of such sets:…

cs.LG2023

A Unified Characterization of Private Learnability via Graph Theory

Noga Alon, Shay Moran, Hilla Schefler +1

We provide a unified framework for characterizing pure and approximate differentially private (DP) learnability. The framework uses the language of graph theory: for a concept clas…

math.CO2023

The limit points of the top and bottom eigenvalues of regular graphs

Noga Alon, Fan Wei

We prove that for each the set of all limit points of the second largest eigenvalue of growing sequences of -regular graphs is . A similar argument s…